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Tangents are drawn to the circle `x^2+y^2=50` from a point 'P' lying on the x-axis. These tangents meet the y-axis at points `P_1'` and `P_2'` . Possible coordinates of 'P' so that area of triangle `PP_1P_2` is minimum , is/are

A

(10,0)

B

`(10sqrt2,0)`

C

`(-10sqrt2,0)`

D

None of these

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